From November 11, 2025 to March 31, 2026, the company has repurchased 1,571,700 shares, representing 0.13% for ¥2,308.89 million. With this, the company has completed the repurchase of 1,571,700 shares, representing 0.13% for ¥2,308.89 million under the buyback announced on November 11, 2025.
Idemitsu Kosan Co Ltd is Japan-based company primarily engaged in fossil fuel-related businesses. The Company operates five business segments. The Fuel Oil segment is engaged in the production, sales, import & export, and trading of refined petroleum products. The Basic Chemicals Segment is engaged in the production and sale of olefins and aromatics products. The High Functional Materials segment is engaged in lubricants, functional chemicals, electronic materials, functional pavement materials, and agribio products. The Power & Renewable Energy segment is engaged in power generation (includes thermal, solar, wind), power sales, and solar cell operations. The Resources segment is engaged in exploration, development, production, and sales of energy resources such as crude oil, natural gas, and coal. The Company also conducts insurance and intra-group service businesses.
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Investor
Investor
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Global
Global
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Quality
Quality
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ESG MSCI
ESG MSCI
The MSCI ESG score assesses a company’s environmental, social, and governance practices relative to its industry peers. Companies are rated from CCC (laggard) to AAA (leader). This rating helps investors incorporate sustainability risks and opportunities into their investment decisions.
